Use marbles made of various sizes but of the same material and drop them from the same height. Galileo’s Original Experiment High school students can mimic Galileo’s research: They can measure the speed of falling objects relating the time of the fall to the objects' weight and size. A simple ramp made with a piece of plywood and a stack of books will provide an inclined plane that can be changed easily. Students can time how long a ball or car takes to roll down planes of different heights. Inclined Planes Another experiment is to use an inclined plane to test how gravity effects the movement of objects. Gravity will pull the heavy end down and cause it to drip more wax, thus making the other end heavier and causing the candle to oscillate between the two ends as the weight changes. Place the saucers under each end of the candle so they catch the wax as it melts. Use the needle to balance the candle on the lip of two glasses.
Push a needle through the center of the candle along its horizontal axis. Cut off the bottom half-inch of a long candle to expose the wick. Students can explore the concept of how gravity affects balance and create their own gravity device with a candle, a needle, two glasses and two saucers. Middle School ProjectsĬreate a Gravity Measuring Device Middle school students can perform more advanced experiments. Repeat the experiment with various sizes of clay balls attached to the top of the straw and observe the results. The straw should flip back into a vertical position. Pull the straw down toward the table and then release. Press a small piece of clay into the bottom of the first half ball. How Weight Affects Gravity Use a ping-pong ball and a piece of clay to test how the weight of objects affects gravity. This experiment will allow students to better understand what happens when a meteor hits the earth. This experiment can also be done outside with rocks and a large area of mud. Drop the marble from different heights to test if the size of the crater will change. Carefully remove the marble from the pan and observe the crater in the flour. Spread newspaper under the pan of flour to make clean-up easier. Pour enough flour into the baking pan to create a layer one-inch deep. Marble Dropping Students can explore how gravity affects objects as they impact the Earth in a simple experiment using flour, a baking tray and a marble. Expand the experiment by tying small objects to one end of the pencil to determine how this changes the point of balance. Gravity is pulling the ends down toward the center of the earth, and if the pencil is not properly balanced it will fall off the finger.
Students can observe gravity by balancing a pencil on their finger. Simple experiments to test gravity and how it affects the balance of objects will provide experience with observation. Observation Grade school students are just beginning to explore the world of science. Some of these experiments can be replicated by students to learn about the force of gravity and how it relates to the motion of objects on earth. Sir Isaac Newton, rumored to have discovered gravity when he saw an apple fall from a tree, wrote mathematical formulas that proved the truth of experiments previously performed by Galileo centuries earlier. Gravity is defined as the force that pulls everything on earth toward the center of the earth. You can follow Nick's work for Spaceland on the video page of Spaceland's Facebook time you fall down you’re experiencing the pull of gravity. You can find TRC on the interwebs at on Facebook at Nick Lott is the Director of Video Marketing for Skydive Spaceland and has a wonderful nack for producing videos. Gravity Lab Radio is hosted by DJ Marvin and Nick Lott with our favorite lab rats, Justin Grubbs and Ben Nelson. You can find us on the web at Facebook at on Vimeo DJ owns and operates The Ratings Center, where he trains skydiving coaches and instructors. You can follow Nick's work for Spaceland on the video page of Spaceland's Facebook Tune in as we dive into Brooke's year of jumping. Brooke Rae Dawson, takes the vacation approach while still making tons of jumps. Some make as many jumps as they can in a year on an unlimited jump package, some see it as a year long skydiving vacation.
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